Cudeman TUNDRA Black Juma

346-JNF

€88,16
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Steel Böhler N690Co
Hardness 60/61 HRc
Total length 18.8 cm
Handle Juma Negra Pulida
Blade length 8.0 cm
Weight 110.0 g
Case
24/48h delivery
Official warranty
14-day returns
Secure payment

⚠️ Dado que esta pieza está cuidadosamente elaborada de manera artesanal, las vetas del material pueden variar. Algunas unidades presentan vetas más marcadas que otras, aun así cada pieza es una obra exclusiva, reflejando la belleza natural e individualidad del material. ¡Disfruta de tu pieza única! 🔪

Cudeman Tundra (346-JN): Dressed in absolute night and polished to the reflection of obsidian. Its black juma handle gives it a dark, superb, and absolutely unique elegance.

The Cudeman Tundra (346-JN) in its polished black juma version is the definition of functional elegance for everyday use or for your display case. Manufactured for those who seek a cutting tool that combines a discreet aesthetic with professional performance, this knife stands out for its perfect balance. Its design is aimed at offering total control in precision tasks, ensuring that every movement is fluid and, above all, safe, whether in an urban environment or on an outdoor adventure.

Why this Cudeman is right for you

  • Sheep-foot Geometry: The shape of its blade allows for millimeter-precise cutting control. Its blade is ideal for clean and safe cuts, minimizing the risk of accidental punctures.
  • Absolute mechanical security: Equipped with a high-strength back-lock system that ensures the blade remains firm and stable under any working pressure.
  • Superior technical adjustment: The use of star screws and Allen screws instead of rivets allows for precise maintenance and ensures a solid structure that prevents loosening over time.
  • Exclusive identity: The polished black juma of its handle features unique patterns on each unit, offering a personalized piece with a high-end polished finish.

Steel and edge performance

This knife features a Böhler N690Co steel blade, one of the most premium alloys used in our Albacete factory. With a hardness of 60/61 HRc, this steel is renowned for its extraordinary edge retention and high corrosion resistance. Its concave grind, combined with a satin finish and polished edges, provides surgical cutting capability that remains consistent even after prolonged use. For optimal and safe resharpening, it is strongly recommended to consult a specialist.

Construction and resistance

Manufactured entirely in our facilities, the solidity of the Tundra is immediately noticeable. With a blade thickness of 2.8 mm and a reinforced structure with quality bushings, this piece is designed to withstand the demands of daily use (EDC). The polished finishes on the blade edges are not only an aesthetic detail but also demonstrate the level of handcrafted refinement applied to a professional cutting tool. To ensure a robust structure and perfect operation over time, the blade is joined to the handle by an Allen screw with an internal brass bushing. This mechanism not only provides a perfect fit without play but also protects the steel and handle from friction wear.

Handle and control in real conditions

The polished black juma handle offers an ergonomic grip and unmatched visual sophistication. Juma is a high-density synthetic material that stands out for its durability and excellent performance in temperature changes. Its 10.8 cm length allows for full hand support, providing superior directional control and comfort that prevents fatigue in repetitive tasks.

Sheath and portability

Depending on whether you need it for your EDC or want it to illuminate your display case, Cudeman offers you these two options:

  • 346-JN: Knife without a sheath for your most premium display case.
  • 346-JNF: Knife with full black sheath. Black sheath, black thread (sheath 636-N).

Use scenarios

  • Everyday utility (EDC): Its Sheep-foot tip makes it perfect for opening packages, cutting fibrous materials, or performing office tasks with maximum precision.
  • Outdoor use: A reliable companion for hiking or camping, where aggressive cutting is required in a compact and lightweight tool.
  • Collecting: Its combination of high-end steel and polished black juma makes it a coveted item for lovers of semi-handmade cutlery manufactured in Spain.

Care and maintenance

  • To preserve the shine of the black juma, it is recommended to store the piece in a dry place and never wet it under the tap.
  • After each use, clean the blade with a microfiber cloth to remove fingerprints or moisture and keep the polished edges impeccable.
  • Periodically apply a drop of light oil to the pivot to ensure that deployment and back lock function smoothly.
  • Occasionally check the adjustment of the star screws to maintain the optimal structural tension of the knife.

The Cudeman Tundra (346-JN) is like a flash of ice tearing through the absolute night. This knife embodies the premium and unwavering shine of N690Co steel in the deep and dark elegance of mirror-polished black Juma.

Frequently Asked Questions

Popular questions from our customers


  • All Cudeman products are designed and manufactured entirely in Albacete, Spain. The brand has over 38 years of experience, combining traditional Albacete cutlery craftsmanship with the latest technologies (such as laser cutting and CNC machining). When you buy a Cudeman, you are acquiring a product with a designation of origin that guarantees quality and know-how.

  • 1. Premium Steels: Böhler N695 / N690Co

    These are the benchmark steels in our high-end range. Böhler is synonymous with purity and Austrian technology.

    • Properties: High hardness (58/61 HRC), excellent corrosion resistance, and superior edge retention thanks to their high chromium and cobalt content (in the case of N690Co).
    • Ideal use: Extreme survival and bushcraft knives (like the famous MT series or the Green Beret), designed to withstand intensive use without losing their edge.

    2. The Gold Standard: Molybdenum Vanadium (MoVa)

    The quintessential steel of Spanish cutlery, valued for its great structural balance.

    • Properties: Reaches a hardness of 54/56 HRC. Its greatest virtue is its toughness (impact resistance) and ease of re-sharpening in the field, even with basic stones.
    • Ideal use: Hunting, finishing, and general-purpose knives. It's the all-terrain steel that never fails in hunting activities.

    3. Swedish Precision: Sandvik 12C27 / 14C28N

    Very fine-grained stainless steels produced in Sweden, ideal for those seeking a "laser" edge.

    • Properties: 14C28N, in particular, offers a masterful balance between hardness (57/59 HRC) and corrosion resistance. It allows for very sharp edges that are resistant to micro-fractures.
    • Ideal use: High-end folding knives (EDC), adventure cutlery, and pieces that require a clean and precise cut.

    4. Tactical Resistance: 420 Stainless Steel

    A very elastic steel resistant to external agents, used in specific high-impact pieces.

    • Properties: Lower hardness than the previous ones (50/53 HRC), which makes it extremely resistant to breakage under torsion or impact. It is virtually immune to oxidation.
    • Ideal use: Throwing knives, diving tools, and low-maintenance tactical cutlery.
  • A high-quality knife is a tool for life, but its longevity depends on maintenance, especially when combining technical steels with natural materials in the handles.

    1. Cleaning and Drying (Crucial for natural materials)

    • Hand washing: Clean the blade and handle with warm water and neutral soap. Never use a dishwasher, as extreme heat and chemical detergents are lethal to steel and wood.
    • Attention to porosity: If your Cudeman has wood, antler, or bone scales, avoid submerging them or leaving them to soak. These materials are porous; moisture can cause them to swell, crack, or separate from the knife's chassis.
    • Immediate drying: Dry the entire piece with a soft cloth immediately after washing. Make sure no moisture remains in the rivet area or joints.

    2. Lubrication and Protection

    • The Blade: If you are going to store the knife, apply a thin layer of mineral oil (or camellia oil) to the steel. This creates a hydrophobic barrier against environmental moisture, which is vital even for stainless steels.
    • The Handle: For natural wood handles, it is advisable to occasionally apply a little linseed oil or beeswax. This nourishes the material, seals the pores, and prevents it from drying out or accidentally absorbing water.

    3. Storage and Leather Sheaths

    • Leather is organic: Leather sheaths are hygroscopic (they absorb moisture). Do not store the knife inside its sheath for prolonged periods of inactivity, as the leather's tanning and retained moisture can cause oxidation pitting on the steel.
    • Sheath maintenance: Hydrate the leather regularly with horse grease or specific creams. A flexible and nourished sheath better protects your tool and prevents the leather from cracking over time.

    Golden rule: A Cudeman knife is not ruined by use, but by neglect. Clean, dry, and store separately if you are not going to use it soon.

  • Cudeman offers a lifetime warranty against any manufacturing or material defects.

    Important note: The warranty does not cover natural wear and tear from use, nor damage caused by misuse of the tool (such as extreme batoning with models not designed for it, throwing the knife, or using it as a lever).
    Items made with natural materials (woods, antlers) or special resins (Juma) may show inherent differences in grain and color compared to the photographs. These aesthetic variations do not constitute a manufacturing defect and are therefore not covered by the warranty or eligible for return.